I bought one each of those black eBay multibands that look like the Laird, $65 and $70, they list different gains. The $70 one with the coil on the whip gives slightly better RSSI on 800MHz than the selection of 5/8 wave 800MHz antennas I have...that really surprised me. It does very well on VHF, UHF is somewhat not as good, but better than UHF on a 5/8 800 or 1/4 VHF antenna for RX. The non coil $65 one doesn't do as well on 800, but has a slight advantage on UHF. The whip on the $70 looks like a 5/8 wave 800MHz, while the cheaper one has a whip that looks like a 1/2 wave UHF.
Paul